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xkcd #3169: EPIRBs
(imgs.xkcd.com)
Title text:
'Oh no, the box is drifting out into the harbor!' 'Yeah, I wouldn't worry about losing it.'
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3169/
Registration Status: Registered.
Beacon Type: EPIRB.
406MHz GPS (Cat. 2) 66-channel. Beacon Status: Operational.
Battery Expiry Date: 01/10/2028.
It's UIN—which I obv won't give lol— doesn't hold an MMSI. The main reason being EPIRBs aren't just for marine craft.